Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken

High Quality Content by WIKIPEDIA articles! The Saffir-Simpson
Hurricane Scale is a classification used for most Western
Hemisphere tropical cyclones that exceed the intensities of
tropical depressions and tropical storms. The scale divides
hurricanes into five categories distinguished by the intensities of
their sustained winds. In order to be classified as a hurricane, a
tropical cyclone must have maximum sustained winds of at least 74
mph (33 m/s; 64 kt; 119 km/h). The highest classification in the
scale, Category 5, is reserved for storms with winds exceeding 155
mph (69 m/s; 136 kt; 249 km/h).